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United States Patent | 5,289,861 |
Hedrick | March 1, 1994 |
A multi-purpose quick-change work surface platform for use with power tools which are secured by means of a unique interlocking mount and dismount system and used in conjunction with various size and types of cutting, routing, sanding, and shaping bits or tools. The work surface platform is designed to receive various workpiece guides, attachments, fences, biscuit joiner, template guide bushings, and other shopbuilt attachments or jigs which are attached or conveyed through means of various recessed threaded insert holes and guide grooves.
Inventors: | Hedrick; David G. (3636 Penn Ave., N., Minneapolis, MN 55412) |
Appl. No.: | 855233 |
Filed: | March 23, 1992 |
Current U.S. Class: | 144/135.2; 144/48.6; 144/82; 144/83; 144/134.1; 144/136.1 |
Intern'l Class: | B27C 005/02 |
Field of Search: | 144/82,83,84,134 R,134 A,134 D,136 R,136 C,253 R,253 J,1 E,1 F |
4679606 | Jul., 1987 | Bassett | 144/134. |
5004027 | Apr., 1991 | Legler et al. | 144/371. |
5025841 | Jun., 1991 | Totten | 144/82. |
5117879 | Jan., 1992 | Payne | 144/134. |